Steam-heating pipe-connection for cars



' I ammmi o o- J EMERSON )STEAM HEATING PIPE GONNEOTION FOR-CARS. ,59'7.Patented May 8,1888.

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wi lmwmo NITED STATE PATENT OFFICE Y JAMES EMERSON, OF WILLIMANSETT,MASSACHUSETTS.

STEAM-HEATING PIPE-CONNECTION FOR" CARS.

SPECIFICATION forming part of Letters Patent No. 382,597, dated May 8,1888.

Application filed December 14, 1887. Serial No. 257,836. (No model.)

. To all whom, it may concern.-

Be it known that I, J AMES EMERSON, a citizen of the United States,residing at Willimansett, in the county of Hainpden and State ofMassachusetts, have invented new and useful Improvements inSteam-HeatingPipe-Connections for Oars, of which the following isaspecification.

This invention relates to steam-heating de vices for railway-cars, andpertains to steampipe connections between cars for uniting the ends ofthe steam-supply pipes thereof, the ob ject being to provide an improvedcoupling for the above-mentioned purpose; and the invention consists inthe peculiar construction and arrangement of said coupling, all ashereinafter fully described, and pointed out in the claims.

In the drawings forming part of this specification, Figure l is aperspective view of a coupling for steam-heating pipe-connectionsbetween railway-cars constructed according to my invention, thehose-nozzle which acts in conjunction withsaid couplingnotbeingshown. inthis figure. Fig. 2 is a longitudinalsection of said coupling on theline 2 2, Fig. 3, and also a longitudinalsection of one of thehosenozzles and of the end of the steam-suppply pipe of a car shown.connected to one end of the coupling, said figureshowing also theflexible hose-coupling (one end being shown in section) for uniting twocouplings, and a second hose-nozzle in side elevation connected to oneend of said. hose. Fig. 3 is a front elevation showing parts of saidcoupling incross-section on the lines 3 3, Fig. 2.

In the drawings, 2 is the coupling tube, which, with its directlyconnected parts, is made preferably of brass or composition metal,excepting that thehooklevers below described are made of iron or steel.The said coupling tube has formed on one end thereof the screwthreadedsocket 3, which receives the end of a steam-supply pipe, 18, which isfixed under the car or cars with which said coupling is connected toconvey steam through the same for warming purposes, said coupling-tubehav= ing the end thereof to which the flexible hose 17 isconnectedinclined downward, as shown in Fig. 2. Said coupling-tube hasthereon the fixed annular ring a, and its lower end has its annulargroove, 8, in said sleeve.

inner border, 5, beveled to adapt'it to receive the end' of thehose-nozzle l5, thelatter hav-,

ing'the.end thereof which engages with the x therewith,the spoke orhand-wheel 7,whereby said screw-threaded sleeve is rotated on the icoupling-tube. To retain thesleeve 6 in proper operative position onthetube 2, a pin, 9, is fixed in said tube and has one end entering anscrewed sleeve 6 has been placed on the coupling-tube in the positionshown in Fig. 2, the aforesaid internally-beveled end of said tube is bya suitable instrument'turnedoutwardly toform a head, a, around the endofthe same, for a purpose hereinafter described. A hook-carrying sleeve,10, having a screwed socket, 12, engaging with the said screwthreadedsleeve 6, is al'soplaced on said couplingatube 2 before the aforesaidoutturned border a is formed on the end of said tube, andthe sleeve 10is capable of a longitudinal reciprocatingmoveinent on the coupling-tubeby rotating said sleeve 6 by means of the wheel 7. The said sleeve 10hasthe bosses 13 thereon, between the sides of which are pivoted threehook-levers, 14, in the position shown. The rear ends of saidhook-leversextendin a line with longitudinal slots, which the rear endsof said lovers are curved, as shown in Figs. 1 and 2. A stud, 4, havinga cam-shaped end, which is capable of engagement with the said rearcurved ends of said under said ends and projects outwardly beyond thesurface of said tube'within'theaforesaid slots in the sleeve 10 underthe ends'of said hooks, the purpose of saidcarn-studs 4 being to causethe hook-levers 14 to have a vibratory motion when said sleeve 10 ismoved hook-levers, is fixed 1n the coupling-tube 2 toward the hand-wheel7, whereby the hooked ends of said levels are caused toapproach or movetoward the 'axial line of the couplingtube, said levers havingat' thesame time a movement with said sleeve 10, whereby their '5 After the I85 are formed in the sleeve 10 thereunder, and Q hooked ends are drawntoward the end of the coupling-tube. WVhen the sleeve is given a reversemotion, whereby the hooked ends of the levers are made to move from theend of the coupling'tube 2, that portion of the under side of said hooksindicated by c, Fig. 2, comes into engagement with the aforesaid bead aon the end of said tube, and thereby the outer ends of said hooks arecaused to swing outwardly from said axial line of the tube 2.

The said hose-nozzle has formed thereon, near the end thereof whichenters and engages with the beveled end of the coupling-tube 2, anannular ring or collar, 16, with which the books on the outer ends ofthe levers 14 engage, and whereby when the sleeve 10 is given a movementon the coupling-tube toward the hand-wheel, as aforesaid, the end ofsaid nozzle is forced into the end of the coupling-tube and thererigidly held until the hand-wheel 7 is turned to release it. The end ofsaid nozzle 15 is preferably ground into the end ofthe coupling-tube 2,to form a steam'tight joint between said two parts when they are forcedinto connection, as above described; but, if desired, the end of thecoupling-tube may be provided with an annular packing-ring, 19, ofsuitable vulcanized material, with which the end of the hosenozzle maybe made to engage to form a tight joint, instead of grinding the parts,as aforesaid.

The coupling-hose 17, of suitably-vulcanized rubber, has in practice anozz1e,-15, attached to each end thereof, as shown in Fig. 2, to adaptit to the requirements of the couplings of the adjoining ends of twocars.

In practice the screw-threads on the sleeve 6 and in the socket 12 onthe sleeve 10 are made quite coarse, so that a comparatively slightrotary movement of the wheel 7 will impart a sufficient. degree oflongitudinal movement to said sleeve 10 to effect the completeconnection of the hose-nozzle 15 with the coupling-tube or itsdisconnection therefrom, such capabilities being essential for thepurposes of rapid manipulation of the couplings in adding a car or carsto or separating them from a train.

The ends of the nozzles 15, which engage with the ends of thecouplingtubes and have the said annular rings 16 thereon, are made topass freely between the ends of the hooks on the levers 14, to avoid anyinconvenience in connecting and disconnecting them, the relativearrangement of said parts being substantially as shown in Fig. 2. Thus,in coupling the hose-nozzle 15 there shown, it is placed in engagementwith the end of the coupling-tube,

and the wheel 7 being given a slight rotary movement the sleeve 10 isquickly drawn toward said wheel, carrying the levers 14 therewith, andthe rear ends of the latter are at the same time brought into engagementwith the studs 4,whereby said hooks are made to engage with said ring onthe hose-nozzle, thereby rigidly connecting said nozzle andcouplingtube. A slight reverse movement of said wheel7 brings the partsof the coupling to the positions shown in Fig. 2, whereby the nozzle isdisconnected.

The wheel 7 may be easily manipulated from the platform of a car forquickly disconnecting the hose-coupling therefrom by the use of asuitable hook which engages with the arms of said hand-wheel.

What I claim as my invention is- 1. The within-described coupling forsteampipe connections between railway-cars, consisting of acoupling-tube, as described, having means for connecting the same with asteam-pipe, combined with a screwthreaded sleeve, 6, capable of a rotarymotion on said tube, a sleeve, 10, having a screw-thread engagement withsaid sleeve 6, whereby said sleeve 10 has a longitudinal reciprocatingmovement on said couplingtube, a series of hook-levers pivoted on saidlongitudinallymoving sleeve, and a cam-stud fixed in said tube under therear end of each of said levers, substantially as set forth.

2. The coupling tube 2, having the outturned bead a on its end, combinedwith the screw-threaded sleeve 6, having a hand-wheel thereon, thesleeve 10, having ascrew engagement with said sleeve 6, and thehook-levers 14, pivoted on said sleeve 10 and having engagement withsaid bead, whereby their hooked ends are swung outwardly, substantiallyas set forth.

3. The couplingtube 2, the screw-threaded sleeve 6, capable of areciprocating rotary mo tion on said tube, the sleeve 1(),having a screwengagement with said sleeve 6, whereby it is given a longitudinal motionon said tube, the cam-studs 4, fixed in the tube 2, combined with thehook-levers14, pivoted on said sleeve 10, having their ends engagingwith the ends of said studs, and a hose-nozzle capable of engagementwith one end of said coupling-tube with which the hooks on said leversengage, substantially as set forth.

J AMES EMERSON.

Witnesses:

H. A. GHAPIN, G. M. CHAMBERLAIN.

